commit https://github.com/vim/vim/commit/73dfe917ba6357413aaf98a021c91add5ac6e9bc Author: Bram Moolenaar <Bram@vim.org> Date: Sat Apr 23 13:54:48 2016 +0200 patch 7.4.1779 Problem: Using negative index in strcharpart(). (Yegappan Lakshmanan) Solution: Assume single byte when using a negative iindex.

Results of test68:


{
a
b
}


{
a  
b  

a  
b
}


{
a



a


}


{
a b
#a b

a b
#a b
}


{
  1 a
    b
# 1 a
#   b
}


{

  x a
    b_
    c

}


{
# 1 a
#   b
}


{
# x a
#   b
}


{ 1aa ^^2bb }


/* abc def ghi jkl 
 *    mno pqr stu 
 *    vwx yz
 */


# 1 xxxxx
#   foobar